Improvement in carding-machines



UNITED STATES PATENT OFFICE.

IMPROVEMENT IN CARDING-MACHINES.

Specification forming part of Letters Patent No. 6,539, dated June 19,1849.

To all whom it may concern:

Be it known that I, JOHN MCOARTY, of Somerset, in the county of Somersetand State of Pennsylvania, have invented certain new and usefulImprovements in Oarding-Ma chines; and I do declare that the followingis a full, clear, and exact description of the principle or characterwhich distinguishes them from all other things before known, and of theusual manner of making, modifying, and using the same, reference beinghad to the accompanying drawing, which forms a part of the same, inwhich a side elevation of the machine is represented, the improvementsbeing colored and the rest of the machine in outline.

The nature of my improvement consists in the manner of banding the toprollers, thereby increasing their speed and regulating their motion, bywhich I economize power and greatly increase the working eifectof thecarding-machine.

Heretofore all the carding-machines in use have had their top rollers orworkers banded to the doffer or else to a complicated and expensivegearing, which was liable to derangement, and as far as my knowledgeextends is going out of use. Chain bands, when used to drive the toprollers, give to them an unsteady `practical operation of these machinesthe effect is Very striking, for in the ordinary machine, when the feedis put on, the power is instantly and perceptibly checked, While in mymachine the difference between the machine running light and with feedis hardly to be noticed.

The arrangement and changes by which my improvement is effected are asfollows: On the shaft a of the main cylinder I putasmall pulley b, aboutthree or three and a half inches in diameter. A band c is brought aroundthis pulley and thence up around pulleys d d on the end of the toprollers or workers, by which means 'I eifect the desired speed. The maincylinder, being very heavy and having'a great deal of iron in its rim orouter periphery, serves as a balance-wheel, and the force required todraw out the liber between the card on the main cylinder and the workersis in some measure caused to react onto the shaft of the main cylinderin the direction of its motion, so that no power is expended except whatis absolutely required to work the fiber which is being carded, and allinequalities in the working are overcome and regulated by the heavy maincylinder in the manner above named. By this mode of banding' I amenabled to do at least a third more in the same time and with the samepower than could be accomplished by the ordinary carding-machine, and noother change in the ordinary card is required for the purpose.

Having thus described fully my improved machine, what I claim therein asnew, and for which I desire to secu re 4Let-ters Patent, is-

Banding the top rollers or workers to the main carding-cylinder,substantially in the manner and for the purposes set forth.

JOHN MCCARTY.

WVitnesses:

J. J. GREENOUGH, y B. K. MoEsELL.

